ssh Options

OpenSSH

Tectia

Option

Meaning

 

-1

Use SSH-1 protocol only

 

-1(t |i)

Use SSH-1 protocol via ssh1 executable (t) or internal emulation (i)

 

-2

Use SSH-2 protocol only

-4

Use IPv4 addresses only

-6

Use IPv6 addresses only

-a

Disable agent forwarding

 

+a

Enable agent forwarding

 

-b bind_address

Select a network interface

 

-A

Enable agent forwarding

-c cipher

Select encryption cipher

 

-C

Enable compression

 

-C

Disable compression

 

+C

Enable compression

 

-d debug_spec

Enable debug messages

 

-D port

Do dynamic port forwarding

-e character

Set escape character

 

-E name

Use external key-provider name

-f

Fork into background

 

-fo

Fork into background once

-F filename

Use other configuration file

-g

Gateway locally forwarded ports

 

+g

Don't gateway locally forwarded ports

 

-h

Print help message

-i filename

Select identity file

 

-I string

Initialization string for external-key provider

 

-I device

Choose smartcard device

 

-k

Disable Kerberos ticket forwarding

-l username

Remote username

-L port1:host2: port2

Local port forwarding

-m algorithm

Select MAC algorithm

 

-M

Do not execute remote command

-n

Redirect stdin from /dev/null

2

 

-N

Execute no remote command

-o "keyword value"

Set configuration keyword

-p port

Select TCP port number

-P

Use nonprivileged port

-q

Quiet mode

-R port1:host2: port2

Remote port forwarding

-s subsystem

Invoke remote subsystem

 

-S

No session channel

 

-S socket

Choose control socket for connection sharing

-t

Allocate tty

 

-T

Don't allocate tty

-v

Verbose mode

 

-V

Print version number

-x

Disable X forwarding

 

+x

Enable X forwarding

 

+X

Enable trusted X forwarding

 

-X

Enable X forwarding

 

-Y

Enable trusted X forwarding